WO1996033765A1 - Device for improving handling of guiding wires, in particular during examinations by means of a catheter - Google Patents

Device for improving handling of guiding wires, in particular during examinations by means of a catheter Download PDF

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Publication number
WO1996033765A1
WO1996033765A1 PCT/EP1996/001748 EP9601748W WO9633765A1 WO 1996033765 A1 WO1996033765 A1 WO 1996033765A1 EP 9601748 W EP9601748 W EP 9601748W WO 9633765 A1 WO9633765 A1 WO 9633765A1
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WO
WIPO (PCT)
Prior art keywords
base body
catheter
clamping means
extension
guide wire
Prior art date
Application number
PCT/EP1996/001748
Other languages
German (de)
French (fr)
Inventor
Thomas Ischinger
Original Assignee
Scimed Life Systems, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Scimed Life Systems, Inc. filed Critical Scimed Life Systems, Inc.
Priority to US08/945,658 priority Critical patent/US6176852B1/en
Priority to EP96914990A priority patent/EP0822843B1/en
Priority to DE59609871T priority patent/DE59609871D1/en
Publication of WO1996033765A1 publication Critical patent/WO1996033765A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0169—Exchanging a catheter while keeping the guidewire in place

Definitions

  • the balloon catheter or another catheter is generally advanced or withdrawn in a guide catheter previously inserted into the patient via a so-called guide wire.
  • the guide wire leaves the wire lumen of the balloon catheter approximately 10 to 30 cm proximal to the balloon (FIG. 1) and then runs outside the balloon catheter shaft but parallel to it inside the guide catheter up to its proximal end outside the patient, so that the surgeon at the proximal end of the guide catheter holds the shaft of the balloon catheter and the guide wire next to each other (one behind the other in non-monorail systems) and can be manipulated separately.
  • the catheter may be withdrawn completely from the guiding catheter must be, for example, to be exchanged for another. It is important that the guidewire remains in place once it has been retracted, despite the withdrawal of the (balloon) catheter, so that the point previously reached by the guidewire remains accessible.
  • the retraction of the (balloon) catheter is initially completely problem-free and is accomplished simply by holding the guidewire with one hand and retracting the shaft of the (balloon) catheter with the other hand until the entry opening of the guidewire into the shaft of the (Balloon) catheter has reached the proximal end of the guide catheter. However, it is necessary for the final section in which the guide wire within the shaft, for. B.
  • the balloon catheter in angioplasty runs a special technique so that the wire is not accidentally withdrawn with the (balloon) catheter.
  • Such a device is characterized by the features of claim 1.
  • the advantage of this solution according to the invention is that the control of the wire by the operator, that is to say the advancement of the wire and at the same time the controlled turning of the wire, is made considerably easier. At the same time it is This makes it easier to distinguish wire from the catheter shaft, so that both are easier to recognize and handle, which is of vital importance in the interest of quick and safe treatment.
  • This device can be used in the same way to simplify and improve the withdrawal of catheters with a coaxial wire course and so-called “monorail” catheters (wire course preferably outside the catheter shaft) in the most varied catheter examinations in the different organ systems. It also contributes to one-handed operation to facilitate or make it possible.
  • the device according to the invention comprises a base body which can be pushed onto the guide wire 6 and which preferably has a central lumen 10 for the guide wire 6 and with clamping means for the same, the base body 9 being provided with a cannula-like distal extension 11 which can optionally be telescopically pushed together.
  • the extent to which the cannula-like extension can be telescopically pushed corresponds, for example in the case of the monorail catheter, to approximately the length with which the guide wire at the distal end of the balloon catheter runs centrally within the balloon catheter shaft, thus corresponds approximately to the distance from the inlet opening of the guide wire to the balloon catheter shaft to its distal exit opening.
  • the length of the telescopic part can vary in all diagnostic and therapeutic catheter applications, depending on the application.
  • the base body can be provided with a knurled screw or the like, which is not shown in the drawing, for frictional fixing on the guide wire and which presses against the guide wire 6 running through the center of the base body 9 and clamps it against the opposite wall.
  • this clamping can be done in the manner of a conventional chuck, such as in drilling machines or lathes.
  • Figure 1 of the drawings shows the conventional situation on the patient, whereby one has to imagine that both the guide catheter 2 and the guide wire 6 are much longer than shown in the drawing and lie in the patient or up to z. B. reach into the heart.
  • the balloon catheter cannot be withdrawn any further from the guide catheter 2 without at the same time also pulling back the guide wire 6, because the latter extends in the distal end region of the balloon catheter (shown in dashed lines). Since the guidewire is to maintain the position reached in the heart or another organ (see direction arrow A) despite the further withdrawal, for example, of the balloon catheter 3, the guide wire 6 must therefore take place to the same extent as the withdrawal when the balloon catheter is withdrawn further from the guide catheter 2 , be advanced. This is a difficult and easily error-prone process, which the present invention seeks to improve. This is achieved, for example, by an embodiment of the device 1 according to the invention shown in FIG.
  • the device 1 in the embodiment shown has an (elongated) base body with a cannula-shaped, telescopically collapsible extension 11, the guide wire 6 being releasably clamped in the base body 9 (in a manner not shown), so that the guide wire each can be set as required with the base body 9 in the axial and circumferential directions. If the latter is the case, the (balloon) catheter 3, 4 can thus be withdrawn from the guide catheter 2 until the situation shown in FIG.
  • the "lumen" of the entire device including the base body 9, which is provided for receiving the wire, is opened laterally, in the form of a longitudinally extending straight or undulating or spiraling slot. This ensures that the wire 6 does not have to be threaded into the lumen 10 in the axial direction but can be inserted laterally into the aforementioned slot, which will make handling easier in certain applications.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
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Abstract

A device (1) is disclosed to improve handling of a catheter guiding wire (6) at its proximal end. The device has a base body (9, 11) with a longitudinal lumen (10) for receiving the guiding wire (6), frictional clamping means for clamping the guiding wire in the longitudinal lumen (10), and an extension (11) shaped as a hollow needle that extends in the direction of the longitudinal lumen (10) and that protrudes at the distal and/or proximal end of the base body and is movable in the longitudinal direction in relation thereto. The hollow needle-shaped extension is preferably telescopically collapsible and the clamping means are arranged at the proximal end of the base body (9) in the longitudinal direction.

Description

Vorrichtung zur verbesserten Handhabung von Führungsdrähten insbesondere bei Katheteruntersuchungen Device for improved handling of guidewires, especially for catheter examinations
Bei der Ballondilatation oder Katheteruntersuchung beispielsweise im Herzen wird der Ballonkatheter oder ein anderer Katheter im allgemeinen in einem zuvor in den Patienten eingeführten Führungskatheter über einen sogenannten Führungsdraht vorgeschoben oder zurückgezogen. Bei der Monorail- Ausführung von Ballonkathetern verläßt der Führungsdraht das Drahtlumen des Ballonkatheters etwa 10 bis 30 cm proximai des Ballons (Abb. 1) und läuft dann außerhalb des Ballonkatheterschaftes aber parallel dazu innerhalb des Führungskatheters bis zu dessen proximalem Ende außerhalb des Patienten, so daß der Operateur am proximalen Ende des Führungskatheters den Schaft des Ballonkatheters und den Führungsdraht nebeneinander (bei Nicht-Monorail Systemen hintereinander) und separat manipulierbar in den Händen hält.In balloon dilatation or catheter examination, for example in the heart, the balloon catheter or another catheter is generally advanced or withdrawn in a guide catheter previously inserted into the patient via a so-called guide wire. In the case of the monorail version of balloon catheters, the guide wire leaves the wire lumen of the balloon catheter approximately 10 to 30 cm proximal to the balloon (FIG. 1) and then runs outside the balloon catheter shaft but parallel to it inside the guide catheter up to its proximal end outside the patient, so that the surgeon at the proximal end of the guide catheter holds the shaft of the balloon catheter and the guide wire next to each other (one behind the other in non-monorail systems) and can be manipulated separately.
Im Verlauf einer Ballondilatation oder anderen Katheterisierungen kann es vorkommen, daß der Katheter ganz aus dem Führungskatheter zurückgezogen werden muß, etwa um gegen einen anderen ausgetauscht zu werden. Dabei ist es wichtig, daß der Führungsdraht trotz des Zurückziehens des (Ballon)Katheters an der einmal eingenommenen Stelle liegenbleibt, damit die vom Führungsdraht zuvor erreichte Stelle erreichbar bleibt. Das Zurückziehen des (Ballon)Katheters ist zunächst einmal völlig problemlos und wird einfach dadurch bewerkstelligt, daß der Führungsdraht mit der einen Hand festgehalten und der Schaft des (Ballon)Katheters mit der anderen Hand zurückgezogen wird, bis die Eintrittsöffnung des Führungsdrahtes in den Schaft des (Ballon)Katheters das proximale Ende des Führungskatheters erreicht hat. Allerdings bedarf es für die Endstrecke, in der der Führungsdraht innerhalb des Schaftes, z. B. des Ballonkatheters bei der Angioplastie, verläuft, einer besonderen Technik, damit der Draht nicht versehentlich mit dem (Ballon)Katheter zurückgezogen wird. Dies bedeutet, daß der Führungsdraht (wegen seiner geringen Knickstabilität) schrittweise in dem Maße gegen den (Ballon)Katheter vorgeschoben werden muß, wie das distale Ende des (Ballon)Katheters mit dem zentral darin verlaufenden Führungsdraht aus dem Führungskatheter herausgezogen wird. Diese Prozedur ist relativ umständlich, kostet Zeit und bedarf großer Aufmerksamkeit des Operateurs.During balloon dilatation or other catheterizations, the catheter may be withdrawn completely from the guiding catheter must be, for example, to be exchanged for another. It is important that the guidewire remains in place once it has been retracted, despite the withdrawal of the (balloon) catheter, so that the point previously reached by the guidewire remains accessible. The retraction of the (balloon) catheter is initially completely problem-free and is accomplished simply by holding the guidewire with one hand and retracting the shaft of the (balloon) catheter with the other hand until the entry opening of the guidewire into the shaft of the (Balloon) catheter has reached the proximal end of the guide catheter. However, it is necessary for the final section in which the guide wire within the shaft, for. B. the balloon catheter in angioplasty, runs a special technique so that the wire is not accidentally withdrawn with the (balloon) catheter. This means that the guidewire (because of its low kink stability) must be advanced gradually against the (balloon) catheter as the distal end of the (balloon) catheter with the guidewire running centrally therein is pulled out of the guiding catheter. This procedure is relatively cumbersome, takes time and requires great attention from the surgeon.
Es ist daher die Aufgabe der vorliegenden Erfindung, eine Vorrichtung anzugeben, durch die das schwierige Rückzugsverfahren des Katheters über einen liegenden Führungsdraht vereinfacht wird.It is therefore the object of the present invention to provide a device by means of which the difficult withdrawal procedure of the catheter over a lying guidewire is simplified.
Eine derartige Vorrichtung ist durch die Merkmale des Anspruches 1 gekennzeichnet.Such a device is characterized by the features of claim 1.
Als Vorteil dieser erfindungsgemäßen Lösung ergibt sich, daß das Steuern des Drahtes durch den Operateur, also das vorschieben des Drahtes und zugleich das kontrollierte Drehen desselben, wesentlich erleichtert wird. Zugleich ist der Draht dadurch besser vom Katheterschaft zu unterscheiden, so daß beide leichter zu erkennen und zu hantieren sind, was im Interesse einer raschen und sicheren Behandlung von eminenter Wichtigkeit ist. Diese Vorrichtung ist in gleicher Weise für eine Vereinfachung und Verbesserung des Rückzuges von Kathetern mit koaxialem Drahtverlauf und sogenannten „Monorail"-Kathetern (Drahtverlauf vorzugsweise außerhalb des Katheterschaftes) bei verschiedensten Katheteruntersuchungen in den verschiedenen Organsystemen einzusetzen. Sie trägt auch dazu bei, eine einhändige Bedienung zu erleichtern bzw. erst zu ermöglichen.The advantage of this solution according to the invention is that the control of the wire by the operator, that is to say the advancement of the wire and at the same time the controlled turning of the wire, is made considerably easier. At the same time it is This makes it easier to distinguish wire from the catheter shaft, so that both are easier to recognize and handle, which is of vital importance in the interest of quick and safe treatment. This device can be used in the same way to simplify and improve the withdrawal of catheters with a coaxial wire course and so-called “monorail” catheters (wire course preferably outside the catheter shaft) in the most varied catheter examinations in the different organ systems. It also contributes to one-handed operation to facilitate or make it possible.
Die erfindungsgemäße Vorrichtung umfaßt einen auf den Führungsdraht 6 aufschiebbaren Grundkörper mit einem vorzugsweise zentralen Lumen 10 für den Führungsdraht 6 und mit Festklemmitteln für denselben, wobei der Grundkörper 9 mit einer kanülenartigen distalen Verlängerung 11 versehen ist, die ggf. teleskopartig zusammenschiebbar ist. Das Maß, um das die kanülenartige Verlängerung teleskopartig zusammenschiebbar ist, entspricht z.B. beim Monorail-Katheter etwa der Länge, mit der der Führungsdraht am distalen Ende des Ballonkatheters zentral innerhalb des Ballonkatheterschaftes verläuft, entspricht also etwa der Strecke von der Eintrittsöffnung des Führungsdrahtes in den Ballonkatheterschaft bis zu seiner distalen Austrittsöffnung. Grundsätzlich kann aber in allen diagnostischen und therapeutischen Katheteranwendungen die Länge des Teleskopteiles je nach Anwendungsfall unterschiedlich sein. In seiner einfachsten Ausführungsform kann der Grundkörper zur kraftschlüssigen Festlegung am Führungsdraht mit einer zeichnerisch nicht dargestellten Rändelschraube oder dergleichen versehen sein, die gegen den durch das Zentrum des Grundkörpers 9 verlaufenden Führungsdraht 6 drückt und diesen gegen die gegenüberliegende Wandung klemmt. In einer anderen Ausführungsform kann diese Klemmung nach Art eines herkömmlichen Spannfutters wie bei Bohrmaschinen oder Drehbänken geschehen. Die Figur 1 der Zeichnungen zeigt die herkömmliche Situation am Patienten, wobei man sich vorzustellen hat, daß sowohl der Führungskatheter 2 als auch der Führungsdraht 6 sehr viel länger als in der Zeichnung dargestellt sind und im Patienten liegen bzw. bis z. B. ins Herz reichen. Wie ersichtlich kann der Ballonkatheter in der in Figur 1 gegebenen Situation nicht weiter aus dem Führungskatheter 2 zurückgezogen werden, ohne zugleich auch den Führungsdraht 6 zurückzuziehen, weil letzterer im distalen Endbereich des Ballonkatheters innerhalb desselben verläuft (gestrichelt gezeichnet). Da der Führungsdraht die im Herzen oder einem anderen Organ (siehe Richtungspfeil A) erreichte Position trotz des weiteren Zurückziehens z.B. des Ballonkatheters 3 beibehalten soll, muß der Führungsdraht 6 also anläßlich des weiteren Zurückziehens des Ballonkatheters aus dem Führungskatheter 2 im gleichen Maße wie das Zurückziehen stattfindet, vorgeschoben werden. Dies ist ein schwieriger und leicht zu Fehlern führender Prozeß, den zu verbessern die vorliegende Erfindung sich zur Aufgabe gemacht hat. Dies wird erreicht z.B. durch eine aus der Figur 2 ersichtliche Ausführungsform der erfindungsgemäßen Vorrichtung 1, in die der Führungsdraht 6 vor dem Zurückziehen des (Ballon)Katheters 3, 4 eingelegt wird. Wie ersichtlich weist die Vorrichtung 1 in der gezeichneten Ausführungsform einen (langgestreckten) Grundkörper mit einer kanülenförmigen, teleskopartig in sich zusammenschiebbaren Verlängerung 11 auf, wobei der Führungsdraht 6 i m Grundkörper 9 (in nicht näher dargestellter Weise) lösbar festgeklemmt werden kann, damit der Führungsdraht je nach Bedarf mit dem Grundkörper 9 in Axial- und Umfangsrichtung festgelegt werden kann. Wenn letzteres der Fall ist, kann also der (Ballon)Katheter 3, 4 aus dem Führungskatheter 2 zurückgezogen werden, bis sich wieder die in Figur 2 dargestellte Situation ergibt, nämlich daß derjenige Punkt des Ballonkatheters erreicht wird, an dem der Führungsdraht 6 aus dem Ballonkatheter 3, 4 austritt (Austrittspunkt B) und beide zusammen aus dem Führungskatheter 2 austreten. Um nun den (Ballon)Katheter weiter aus dem Führungskatheter 2 herausziehen zu können, ohne daß sich der Führungsdraht 6 relativ zum zu behandelnden Organ verschiebt, wird die distale Verlängerung 11 oder Teleskopnase im gleichen Maße zusammengeschoben, wie das letzte Ende des (Ballon)Katheters aus dem Führungskatheter 2 weiter herausgezogen wird, so daß sich im Ergebnis keine Axialverschiebung des Führungsdrahtes 6 ergibt. Anschließend kann die Klemmung des Führungsdrahtes innerhalb des Grundkörpers 9 der erfindungsgemäßen Vorrichtung z. B. durch Hebeldruck aufgehoben werden und die Vorrichtung 1 kann vom Führungsdraht abgezogen oder auf ihm verschoben werden, wenn dies gewünscht wird. Insgesamt ergibt sich durch die neuartige Vorrichtung eine verbesserte und einfachere bzw. schnellere und sicherere Handhabung der gesamten Katheterisierung.The device according to the invention comprises a base body which can be pushed onto the guide wire 6 and which preferably has a central lumen 10 for the guide wire 6 and with clamping means for the same, the base body 9 being provided with a cannula-like distal extension 11 which can optionally be telescopically pushed together. The extent to which the cannula-like extension can be telescopically pushed corresponds, for example in the case of the monorail catheter, to approximately the length with which the guide wire at the distal end of the balloon catheter runs centrally within the balloon catheter shaft, thus corresponds approximately to the distance from the inlet opening of the guide wire to the balloon catheter shaft to its distal exit opening. In principle, however, the length of the telescopic part can vary in all diagnostic and therapeutic catheter applications, depending on the application. In its simplest embodiment, the base body can be provided with a knurled screw or the like, which is not shown in the drawing, for frictional fixing on the guide wire and which presses against the guide wire 6 running through the center of the base body 9 and clamps it against the opposite wall. In another embodiment, this clamping can be done in the manner of a conventional chuck, such as in drilling machines or lathes. Figure 1 of the drawings shows the conventional situation on the patient, whereby one has to imagine that both the guide catheter 2 and the guide wire 6 are much longer than shown in the drawing and lie in the patient or up to z. B. reach into the heart. As can be seen, in the situation given in FIG. 1, the balloon catheter cannot be withdrawn any further from the guide catheter 2 without at the same time also pulling back the guide wire 6, because the latter extends in the distal end region of the balloon catheter (shown in dashed lines). Since the guidewire is to maintain the position reached in the heart or another organ (see direction arrow A) despite the further withdrawal, for example, of the balloon catheter 3, the guide wire 6 must therefore take place to the same extent as the withdrawal when the balloon catheter is withdrawn further from the guide catheter 2 , be advanced. This is a difficult and easily error-prone process, which the present invention seeks to improve. This is achieved, for example, by an embodiment of the device 1 according to the invention shown in FIG. 2, into which the guide wire 6 is inserted before the (balloon) catheter 3, 4 is withdrawn. As can be seen, the device 1 in the embodiment shown has an (elongated) base body with a cannula-shaped, telescopically collapsible extension 11, the guide wire 6 being releasably clamped in the base body 9 (in a manner not shown), so that the guide wire each can be set as required with the base body 9 in the axial and circumferential directions. If the latter is the case, the (balloon) catheter 3, 4 can thus be withdrawn from the guide catheter 2 until the situation shown in FIG. 2 again arises, namely that the point of the balloon catheter is reached at which the guide wire 6 from the Balloon catheter 3, 4 emerges (exit point B) and both exit together exit the guiding catheter 2. In order to be able to pull the (balloon) catheter further out of the guide catheter 2 without the guide wire 6 shifting relative to the organ to be treated, the distal extension 11 or telescopic nose is pushed together to the same extent as the last end of the (balloon) catheter is further pulled out of the guide catheter 2 so that there is no axial displacement of the guide wire 6 as a result. Then the clamping of the guide wire within the base body 9 of the device according to the invention z. B. be lifted by lever pressure and the device 1 can be withdrawn from the guide wire or moved on it, if desired. Overall, the novel device results in improved and simpler or faster and safer handling of the entire catheterization.
In einer in den Zeichnungen nicht dargestellten alternativen Ausführungsform ist das zur Drahtaufnahme vorgesehene „Lumen" der gesamten Vorrichtung einschließlich des Grundkörpers 9 seitlich geöffnet, und zwar in Gestalt eines längs verlauf enden geraden oder wellenförmigen oder spiralförmig verlaufenden Schlitzes. Dadurch wird erreicht, daß der Draht 6 nicht in das Lumen 10 in Axialrichtung eingefädelt werden muß sondern in den vorgenannten Schlitz seitlich eingelegt werden kann, was die Handhabung in bestimmten Anwendungsfällen erleichtern wird. In an alternative embodiment, not shown in the drawings, the "lumen" of the entire device, including the base body 9, which is provided for receiving the wire, is opened laterally, in the form of a longitudinally extending straight or undulating or spiraling slot. This ensures that the wire 6 does not have to be threaded into the lumen 10 in the axial direction but can be inserted laterally into the aforementioned slot, which will make handling easier in certain applications.
BezugszeichenlisteReference list
1 Vorrichtung „Torquer"1 "Torquer" device
2 Führungskatheter2 guiding catheters
3 Ballonkatheter3 balloon catheters
4 Ballonkatheter-Shaft 5 6 Angioplastie-Führungsdraht 74 balloon catheter shaft 5 6 angioplasty guide wire 7
8 Tuchklemme8 cloth clamp
9 Grundkörper9 basic body
10 zentrales Lumen10 central lumens
11 Verlängerung11 extension
12 Verdickung / Spitze12 thickening / tip
A Richtung zum Herzen oder dgl.A direction to the heart or the like
B Austrittspunkt B exit point

Claims

Patentansprüche claims
1. Vorrichtung zur verbesserten Handhabung eines Katheter- Führungsdrahtes (6) an dessen proximalem Ende,1. Device for improved handling of a catheter guidewire (6) at its proximal end,
gekennzeichnet durchmarked by
einen Grundkörper (9) mit einem längsverlaufenden Drahtaufnahme- Lumen (10) zur Aufnahme des Führungsdrahtes (6),a base body (9) with a longitudinal wire receiving lumen (10) for receiving the guide wire (6),
ein Festspannmittel zum kraftschlüssigen Festklemmen des Führungsdrahtes im längsverlaufenden Lumen, unda clamping means for non-positively clamping the guide wire in the longitudinal lumen, and
eine vom Grundkörper (9) an seinem distalen und/oder proximalen Ende vorstehende und relativ dazu längsverschiebliche kanülenartige Verlängerung (11), die sich in Richtung des längsverlaufenden Lumens (10) erstreckt.a cannula-like extension (11) projecting from the base body (9) at its distal and / or proximal end and displaceable longitudinally relative thereto, which extends in the direction of the longitudinal lumen (10).
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die kanülenartige Verlängerung (11) in sich teleskopartig zusammenschiebbar ist. 2. Device according to claim 1, characterized in that the cannula-like extension (11) is telescopically collapsible.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Festspannmittel am proximalen Ende der Längserstreckung des Grundkörpers (9) angeordnet ist.3. Apparatus according to claim 1 or 2, characterized in that the clamping means is arranged at the proximal end of the longitudinal extent of the base body (9).
4. Vorrichtung nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß ein weiteres Festspannmittel am distalen Ende der Längserstreckung des Grundkörpers angeordnet ist.4. Apparatus according to claim 1, 2 or 3, characterized in that a further clamping means is arranged at the distal end of the longitudinal extension of the base body.
5. Vorrichtung nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß das Festspannmittel durch einen am Grundkörper angeordneten Hebel betätigbar ist, dessen Betätigung das Festspannmittel in Eingriff mit dem Führungsdraht (6) bringt.5. Device according to one of the preceding claims, characterized in that the clamping means can be actuated by a lever arranged on the base body, the actuation of which brings the clamping means into engagement with the guide wire (6).
6. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Festspannmittel durch einen am Grundkörper angeordneten Hebel betätigbar ist, dessen Betätigung das im Ruhezustand mit dem Führungsdraht verspannte Festspannmittel löst.6. Device according to one of claims 1 to 4, characterized in that the clamping means can be actuated by a lever arranged on the base body, the actuation of which releases the clamping means clamped in the idle state with the guide wire.
7. Vorrichtung nach einem der voranstehenden Ansprüche 5 und 6, dadurch gekennzeichnet, daß die Betätigung des Hebels zugleich die kanülenartige Verlängerung zur Längsverschiebung gegenüber dem Grundkörper freigibt.7. Device according to one of the preceding claims 5 and 6, characterized in that the actuation of the lever simultaneously releases the cannula-like extension for longitudinal displacement relative to the base body.
8. Vorrichtung nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß außen am Grundkörper (9) eine Tuchklemme (8) zur Befestigung der Vorrichtung (1) an einem Abdecktuch vorgesehen ist.8. Device according to one of the preceding claims, characterized in that on the outside of the base body (9) a cloth clamp (8) for fastening the device (1) is provided on a drape.
9. Vorrichtung nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die Spitze am distalen Ende der kanülenartigen Verlängerung olivenartig oder pilzförmig verdickt ist, um ein Eindringen in den Katheterschaft (4) zu vermeiden.9. Device according to one of the preceding claims, characterized in that the tip at the distal end of the cannula-like Extension is thickened like an olive or a mushroom to prevent penetration into the catheter shaft (4).
10. Vorrichtung nach dem voranstehenden Anspruch 9, dadurch gekennzeichnet, daß die verdickte Spitze (12) seitlich halbmondartig ausgespart ist zur Anpassung an den Schaft (4) des Ballonkatheters (3), also auf einer Längsseite zur besseren Anpassung eine Konkavität aufweist.10. The device according to the preceding claim 9, characterized in that the thickened tip (12) is laterally crescent-like recessed to adapt to the shaft (4) of the balloon catheter (3), that is, on one long side for better adaptation has a concavity.
11. Vorrichtung nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die kanülenartige Verlängerung (11) durch Federdruck ausfahrbar ist, z. B. durch eine mechanische Feder oder durch Gasdruck. 11. Device according to one of the preceding claims, characterized in that the cannula-like extension (11) can be extended by spring pressure, for. B. by a mechanical spring or by gas pressure.
PCT/EP1996/001748 1995-04-28 1996-04-26 Device for improving handling of guiding wires, in particular during examinations by means of a catheter WO1996033765A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US08/945,658 US6176852B1 (en) 1995-04-28 1996-04-26 Device for improving handling of guiding wires
EP96914990A EP0822843B1 (en) 1995-04-28 1996-04-26 Device for improving handling of guiding wires, in particular during examinations by means of a catheter
DE59609871T DE59609871D1 (en) 1995-04-28 1996-04-26 DEVICE FOR IMPROVED HANDLING OF GUIDE WIRE, IN PARTICULAR IN CATHETER EXAMINATIONS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19515761A DE19515761A1 (en) 1995-04-28 1995-04-28 Device for improved handling of guidewires, especially for catheter examinations
DE19515761.3 1995-04-28

Publications (1)

Publication Number Publication Date
WO1996033765A1 true WO1996033765A1 (en) 1996-10-31

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PCT/EP1996/001748 WO1996033765A1 (en) 1995-04-28 1996-04-26 Device for improving handling of guiding wires, in particular during examinations by means of a catheter

Country Status (4)

Country Link
US (1) US6176852B1 (en)
EP (1) EP0822843B1 (en)
DE (2) DE19515761A1 (en)
WO (1) WO1996033765A1 (en)

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US7229051B2 (en) * 2005-02-14 2007-06-12 Mailhot Jr Robert Support device for guidewires and catheters and method of use thereof
US20090076417A1 (en) * 2007-08-08 2009-03-19 Gregory Allen Jones Glide Clip
US9421065B2 (en) 2008-04-02 2016-08-23 The Spectranetics Corporation Liquid light-guide catheter with optically diverging tip
US8979828B2 (en) 2008-07-21 2015-03-17 The Spectranetics Corporation Tapered liquid light guide
EP2696929A1 (en) 2011-04-11 2014-02-19 The Spectranetics Corporation Needle and guidewire holder
US11191575B2 (en) 2019-06-07 2021-12-07 Stryker Corporation Systems and methods for off-axis augmentation of a vertebral body

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Also Published As

Publication number Publication date
US6176852B1 (en) 2001-01-23
EP0822843A1 (en) 1998-02-11
EP0822843B1 (en) 2002-11-13
DE59609871D1 (en) 2002-12-19
DE19515761A1 (en) 1996-10-31

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